<?php

/**
 * @file
 * Administrative page callbacks for the shortcut module.
 */

/**
 * Returns the maximum number of shortcut "slots" available per shortcut set.
 *
 * This is used as a limitation in the user interface only.
 *
 * @return
 *   The maximum number of shortcuts allowed to be added to a shortcut set.
 */
function shortcut_max_slots() {
	return variable_get('shortcut_max_slots', 7);
}

/**
 * Form callback: builds the form for switching shortcut sets.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param $account
 *   (optional) The user account whose shortcuts will be switched. Defaults to
 *   the current logged-in user.
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_set_switch_validate()
 * @see shortcut_set_switch_submit()
 */
function shortcut_set_switch($form, &$form_state, $account = NULL) {
	global $user;
	if (!isset($account)) {
		$account = $user;
	}

	// Prepare the list of shortcut sets.
	$sets = shortcut_sets();
	$current_set = shortcut_current_displayed_set($account);

	$options = array();
	foreach ($sets as $name => $set) {
		$options[$name] = check_plain($set->title);
	}

	// Only administrators can add shortcut sets.
	$add_access = user_access('administer shortcuts');
	if ($add_access) {
		$options['new'] = t('New set');
	}

	if (count($options) > 1) {
		$form['account'] = array(
				'#type' => 'value',
				'#value' => $account,
		);

		$form['set'] = array(
				'#type' => 'radios',
				'#title' => $user->uid == $account->uid ? t('Choose a set of shortcuts to use') : t('Choose a set of shortcuts for this user'),
				'#options' => $options,
				'#default_value' => $current_set->set_name,
		);

		$form['new'] = array(
				'#type' => 'textfield',
				'#title' => t('Name'),
				'#title_display' => 'invisible',
				'#description' => t('The new set is created by copying items from your default shortcut set.'),
				'#access' => $add_access,
		);

		if ($user->uid != $account->uid) {
			$default_set = shortcut_default_set($account);
			$form['new']['#description'] = t('The new set is created by copying items from the %default set.', array('%default' => $default_set->title));
		}

		$form['#attached'] = array(
				'css' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.css'),
				'js' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.js'),
		);

		$form['actions'] = array('#type' => 'actions');
		$form['actions']['submit'] = array(
				'#type' => 'submit',
				'#value' => t('Change set'),
		);
	}
	else {
		// There is only 1 option, so output a message in the $form array.
		$form['info'] = array(
				'#markup' => '<p>' . t('You are currently using the %set-name shortcut set.', array('%set-name' => $current_set->title)) . '</p>',
		);
	}

	return $form;
}

/**
 * Validation handler for shortcut_set_switch().
 */
function shortcut_set_switch_validate($form, &$form_state) {
	if ($form_state['values']['set'] == 'new') {
		// Check to prevent creating a shortcut set with an empty title.
		if (trim($form_state['values']['new']) == '') {
			form_set_error('new', t('The new set name is required.'));
		}
		// Check to prevent a duplicate title.
		if (shortcut_set_title_exists($form_state['values']['new'])) {
			form_set_error('new', t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state['values']['new'])));
		}
	}
}

/**
 * Submit handler for shortcut_set_switch().
 */
function shortcut_set_switch_submit($form, &$form_state) {
	global $user;
	$account = $form_state['values']['account'];

	if ($form_state['values']['set'] == 'new') {
		// Save a new shortcut set with links copied from the user's default set.
		$default_set = shortcut_default_set($account);
		$set = (object) array(
				'title' => $form_state['values']['new'],
				'links' => menu_links_clone($default_set->links),
		);
		shortcut_set_save($set);
		$replacements = array(
				'%user' => $account->name,
				'%set_name' => $set->title,
				'@switch-url' => url(current_path()),
		);
		if ($account->uid == $user->uid) {
			// Only administrators can create new shortcut sets, so we know they have
			// access to switch back.
			drupal_set_message(t('You are now using the new %set_name shortcut set. You can edit it from this page or <a href="@switch-url">switch back to a different one.</a>', $replacements));
		}
		else {
			drupal_set_message(t('%user is now using a new shortcut set called %set_name. You can edit it from this page.', $replacements));
		}
		$form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $set->set_name;
	}
	else {
		// Switch to a different shortcut set.
		$set = shortcut_set_load($form_state['values']['set']);
		$replacements = array(
				'%user' => $account->name,
				'%set_name' => $set->title,
		);
		drupal_set_message($account->uid == $user->uid ? t('You are now using the %set_name shortcut set.', $replacements) : t('%user is now using the %set_name shortcut set.', $replacements));
	}

	// Assign the shortcut set to the provided user account.
	shortcut_set_assign_user($set, $account);
}

/**
 * Menu page callback: builds the page for administering shortcut sets.
 */
function shortcut_set_admin() {
	$shortcut_sets = shortcut_sets();
	$header = array(t('Name'), array('data' => t('Operations'), 'colspan' => 4));

	$rows = array();
	foreach ($shortcut_sets as $set) {
		$row = array(
				check_plain($set->title),
				l(t('list links'), "admin/config/user-interface/shortcut/$set->set_name"),
				l(t('edit set name'), "admin/config/user-interface/shortcut/$set->set_name/edit"),
		);
		if (shortcut_set_delete_access($set)) {
			$row[] = l(t('delete set'), "admin/config/user-interface/shortcut/$set->set_name/delete");
		}
		else {
			$row[] = '';
		}

		$rows[] = $row;
	}

	return theme('table', array('header' => $header, 'rows' => $rows));
}

/**
 * Form callback: builds the form for adding a shortcut set.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_set_add_form_validate()
 * @see shortcut_set_add_form_submit()
 */
function shortcut_set_add_form($form, &$form_state) {
	$form['new'] = array(
			'#type' => 'textfield',
			'#title' => t('Set name'),
			'#description' => t('The new set is created by copying items from your default shortcut set.'),
			'#required' => TRUE,
	);

	$form['actions'] = array('#type' => 'actions');
	$form['actions']['submit'] = array(
			'#type' => 'submit',
			'#value' => t('Create new set'),
	);

	return $form;
}

/**
 * Validation handler for shortcut_set_add_form().
 */
function shortcut_set_add_form_validate($form, &$form_state) {
	// Check to prevent a duplicate title.
	if (shortcut_set_title_exists($form_state['values']['new'])) {
		form_set_error('new', t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state['values']['new'])));
	}
}

/**
 * Submit handler for shortcut_set_add_form().
 */
function shortcut_set_add_form_submit($form, &$form_state) {
	// Save a new shortcut set with links copied from the user's default set.
	$default_set = shortcut_default_set();
	$set = (object) array(
			'title' => $form_state['values']['new'],
			'links' => menu_links_clone($default_set->links),
	);
	shortcut_set_save($set);
	drupal_set_message(t('The %set_name shortcut set has been created. You can edit it from this page.', array('%set_name' => $set->title)));
	$form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $set->set_name;
}

/**
 * Form callback: builds the form for customizing shortcut sets.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param $shortcut_set
 *   An object representing the shortcut set which is being edited.
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_set_customize_submit()
 */
function shortcut_set_customize($form, &$form_state, $shortcut_set) {
	$form['#shortcut_set_name'] = $shortcut_set->set_name;
	$form['shortcuts'] = array(
			'#tree' => TRUE,
			'#weight' => -20,
			'enabled' => array(),
			'disabled' => array(),
	);

	foreach ($shortcut_set->links as $link) {
		$mlid = $link['mlid'];
		$status = $link['hidden'] ? 'disabled' : 'enabled';
		$form['shortcuts'][$status][$mlid]['name']['#markup'] = l($link['link_title'], $link['link_path']);
		$form['shortcuts'][$status][$mlid]['weight'] = array(
				'#type' => 'weight',
				'#title' => t('Weight'),
				'#delta' => 50,
				'#default_value' => $link['weight'],
				'#attributes' => array('class' => array('shortcut-weight')),
		);
		$form['shortcuts'][$status][$mlid]['status'] = array(
				'#type' => 'select',
				'#title' => t('Status'),
				'#options' => array('disabled' => t('Disabled'), 'enabled' => t('Enabled')),
				'#default_value' => $status,
				'#attributes' => array('class' => array('shortcut-status-select')),
		);

		$form['shortcuts'][$status][$mlid]['edit']['#markup'] = l(t('edit'), 'admin/config/user-interface/shortcut/link/' . $mlid);
		$form['shortcuts'][$status][$mlid]['delete']['#markup'] = l(t('delete'), 'admin/config/user-interface/shortcut/link/' . $mlid . '/delete');
	}

	$form['#attached'] = array(
			'css' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.css'),
			'js' => array(drupal_get_path('module', 'shortcut') . '/shortcut.admin.js'),
	);

	$form['actions'] = array(
			'#type' => 'actions',
			'#access' => !empty($shortcut_set->links),
	);
	$form['actions']['submit'] = array(
			'#type' => 'submit',
			'#value' => t('Save changes'),
	);

	return $form;
}

/**
 * Submit handler for shortcut_set_customize().
 */
function shortcut_set_customize_submit($form, &$form_state) {
	foreach ($form_state['values']['shortcuts'] as $group => $links) {
		foreach ($links as $mlid => $data) {
			$link = menu_link_load($mlid);
			$link['hidden'] = $data['status'] == 'enabled' ? 0 : 1;
			$link['weight'] = $data['weight'];
			menu_link_save($link);
		}
	}
	drupal_set_message(t('The shortcut set has been updated.'));
}

/**
 * Returns HTML for a shortcut set customization form.
 *
 * @param $variables
 *   An associative array containing:
 *   - form: A render element representing the form.
 *
 * @see shortcut_set_customize()
 * @ingroup themeable
 */
function theme_shortcut_set_customize($variables) {
	$form = $variables['form'];
	$map = array('disabled' => t('Disabled'), 'enabled' => t('Enabled'));
	$shortcuts_by_status = array(
			'enabled' => element_children($form['shortcuts']['enabled']),
			'disabled' => element_children($form['shortcuts']['disabled']),
	);
	// Do not add any rows to the table if there are no shortcuts to display.
	$statuses = empty($shortcuts_by_status['enabled']) && empty($shortcuts_by_status['disabled']) ? array() : array_keys($shortcuts_by_status);

	$rows = array();
	foreach ($statuses as $status) {
		drupal_add_tabledrag('shortcuts', 'match', 'sibling', 'shortcut-status-select');
		drupal_add_tabledrag('shortcuts', 'order', 'sibling', 'shortcut-weight');
		$rows[] = array(
				'data' => array(array(
						'colspan' => 5,
						'data' => '<strong>' . $map[$status] . '</strong>',
				)),
				'class' => array('shortcut-status', 'shortcut-status-' . $status),
		);

		foreach ($shortcuts_by_status[$status] as $key) {
			$shortcut = &$form['shortcuts'][$status][$key];
			$row = array();
			$row[] = drupal_render($shortcut['name']);
			$row[] = drupal_render($shortcut['weight']);
			$row[] = drupal_render($shortcut['status']);
			$row[] = drupal_render($shortcut['edit']);
			$row[] = drupal_render($shortcut['delete']);
			$rows[] = array(
					'data' => $row,
					'class' => array('draggable'),
			);
		}

		if ($status == 'enabled') {
			for ($i = 0; $i < shortcut_max_slots(); $i++) {
				$rows['empty-' . $i] = array(
						'data' => array(array(
								'colspan' => 5,
								'data' => '<em>' . t('Empty') . '</em>',
						)),
						'class' => array('shortcut-slot-empty'),
				);
			}
			$count_shortcuts = count($shortcuts_by_status[$status]);
			if (!empty($count_shortcuts)) {
				for ($i = 0; $i < min($count_shortcuts, shortcut_max_slots()); $i++) {
					$rows['empty-' . $i]['class'][] = 'shortcut-slot-hidden';
				}
			}
		}
	}

	$header = array(t('Name'), t('Weight'), t('Status'), array('data' => t('Operations'), 'colspan' => 2));
	$output = theme('table', array('header' => $header, 'rows' => $rows, 'attributes' => array('id' => 'shortcuts'), 'empty' => t('No shortcuts available. <a href="@link">Add a shortcut</a>.', array('@link' => url('admin/config/user-interface/shortcut/' . $form['#shortcut_set_name'] . '/add-link')))));
	$output .= drupal_render($form['actions']);
	$output = drupal_render_children($form) . $output;
	return $output;
}

/**
 * Form callback: builds the form for adding a new shortcut link.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param $shortcut_set
 *   An object representing the shortcut set to which the link will be added.
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_link_edit_validate()
 * @see shortcut_link_add_submit()
 */
function shortcut_link_add($form, &$form_state, $shortcut_set) {
	drupal_set_title(t('Add new shortcut'));
	$form['shortcut_set'] = array(
			'#type' => 'value',
			'#value' => $shortcut_set,
	);
	$form += _shortcut_link_form_elements();
	return $form;
}

/**
 * Form callback: builds the form for editing a shortcut link.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param $shortcut_link
 *   An array representing the link that is being edited.
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_link_edit_validate()
 * @see shortcut_link_edit_submit()
 */
function shortcut_link_edit($form, &$form_state, $shortcut_link) {
	drupal_set_title(t('Editing @shortcut', array('@shortcut' => $shortcut_link['link_title'])));
	$form['original_shortcut_link'] = array(
			'#type' => 'value',
			'#value' => $shortcut_link,
	);
	$form += _shortcut_link_form_elements($shortcut_link);
	return $form;
}

/**
 * Helper function for building a form for adding or editing shortcut links.
 *
 * @param $shortcut_link
 *   (optional) An array representing the shortcut link that will be edited. If
 *   not provided, a new link will be created.
 *
 * @return
 *   An array of form elements.
 */
function _shortcut_link_form_elements($shortcut_link = NULL) {
	if (!isset($shortcut_link)) {
		$shortcut_link = array(
				'link_title' => '',
				'link_path' => ''
		);
	}
	else {
		$shortcut_link['link_path'] = drupal_get_path_alias($shortcut_link['link_path']);
	}

	$form['shortcut_link']['#tree'] = TRUE;
	$form['shortcut_link']['link_title'] = array(
			'#type' => 'textfield',
			'#title' => t('Name'),
			'#description' => t('The name of the shortcut.'),
			'#size' => 40,
			'#maxlength' => 255,
			'#default_value' => $shortcut_link['link_title'],
			'#required' => TRUE,
	);

	$form['shortcut_link']['link_path'] = array(
			'#type' => 'textfield',
			'#title' => t('Path'),
			'#description' => t('The path to the shortcut.'),
			'#size' => 40,
			'#maxlength' => 255,
			'#field_prefix' => url(NULL, array('absolute' => TRUE)) . (variable_get('clean_url', 0) ? '' : '?q='),
			'#default_value' => $shortcut_link['link_path'],
	);

	$form['#validate'][] = 'shortcut_link_edit_validate';

	$form['actions'] = array('#type' => 'actions');
	$form['actions']['submit'] = array(
			'#type' => 'submit',
			'#value' => t('Save'),
	);

	return $form;
}

/**
 * Validation handler for the shortcut link add and edit forms.
 */
function shortcut_link_edit_validate($form, &$form_state) {
	if (!shortcut_valid_link($form_state['values']['shortcut_link']['link_path'])) {
		form_set_error('shortcut_link][link_path', t('The link must correspond to a valid path on the site.'));
	}
}

/**
 * Submit handler for shortcut_link_edit().
 */
function shortcut_link_edit_submit($form, &$form_state) {
	// Normalize the path in case it is an alias.
	$form_state['values']['shortcut_link']['link_path'] = drupal_get_normal_path($form_state['values']['shortcut_link']['link_path']);

	$shortcut_link = array_merge($form_state['values']['original_shortcut_link'], $form_state['values']['shortcut_link']);

	menu_link_save($shortcut_link);
	$form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $shortcut_link['menu_name'];
	drupal_set_message(t('The shortcut %link has been updated.', array('%link' => $shortcut_link['link_title'])));
}

/**
 * Submit handler for shortcut_link_add().
 */
function shortcut_link_add_submit($form, &$form_state) {
	// Add the shortcut link to the set.
	$shortcut_set = $form_state['values']['shortcut_set'];
	$shortcut_link = $form_state['values']['shortcut_link'];
	$shortcut_link['menu_name'] = $shortcut_set->set_name;
	shortcut_admin_add_link($shortcut_link, $shortcut_set, shortcut_max_slots());
	shortcut_set_save($shortcut_set);
	$form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $shortcut_link['menu_name'];
	drupal_set_message(t('Added a shortcut for %title.', array('%title' => $shortcut_link['link_title'])));
}

/**
 * Adds a link to the end of a shortcut set, keeping within a prescribed limit.
 *
 * @param $link
 *   An array representing a shortcut link.
 * @param $shortcut_set
 *   An object representing the shortcut set which the link will be added to.
 *   The links in the shortcut set will be re-weighted so that the new link is
 *   at the end, and some existing links may be disabled (if the $limit
 *   parameter is provided).
 * @param $limit
 *   (optional) The maximum number of links that are allowed to be enabled for
 *   this shortcut set. If provided, existing links at the end of the list that
 *   exceed the limit will be automatically disabled. If not provided, no limit
 *   will be enforced.
 */
function shortcut_admin_add_link($shortcut_link, &$shortcut_set, $limit = NULL) {
	if (isset($limit)) {
		// Disable any existing links at the end of the list that would cause the
		// limit to be exceeded. Take into account whether or not the new link will
		// be enabled and count towards the total.
		$number_enabled = !empty($shortcut_link['hidden']) ? 0 : 1;
		foreach ($shortcut_set->links as &$link) {
			if (!$link['hidden']) {
				$number_enabled++;
				if ($number_enabled > $limit) {
					$link['hidden'] = 1;
				}
			}
		}
	}

	// Normalize the path in case it is an alias.
	$shortcut_link['link_path'] = drupal_get_normal_path($shortcut_link['link_path']);

	// Add the link to the end of the list.
	$shortcut_set->links[] = $shortcut_link;
	shortcut_set_reset_link_weights($shortcut_set);
}

/**
 * Form callback: builds the form for editing the shortcut set name.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param object $shortcut_set
 *   An object representing the shortcut set, as returned from
 *   shortcut_set_load().
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_set_edit_form_validate()
 * @see shortcut_set_edit_form_submit()
 */
function shortcut_set_edit_form($form, &$form_state, $shortcut_set) {
	$form['shortcut_set'] = array(
			'#type' => 'value',
			'#value' => $shortcut_set,
	);
	$form['title'] = array(
			'#type' => 'textfield',
			'#title' => t('Set name'),
			'#default_value' => $shortcut_set->title,
			'#maxlength' => 255,
			'#required' => TRUE,
			'#weight' => -5,
	);
	$form['actions'] = array('#type' => 'actions');
	$form['actions']['submit'] = array(
			'#type' => 'submit',
			'#value' => t('Save'),
			'#weight' => 5,
	);

	return $form;
}

/**
 * Validation handler for shortcut_set_edit_form().
 */
function shortcut_set_edit_form_validate($form, &$form_state) {
	// Check to prevent a duplicate title, if the title was edited from its
	// original value.
	if ($form_state['values']['title'] != $form_state['values']['shortcut_set']->title && shortcut_set_title_exists($form_state['values']['title'])) {
		form_set_error('title', t('The shortcut set %name already exists. Choose another name.', array('%name' => $form_state['values']['title'])));
	}
}

/**
 * Submit handler for shortcut_set_edit_form().
 */
function shortcut_set_edit_form_submit($form, &$form_state) {
	$shortcut_set = $form_state['values']['shortcut_set'];
	$shortcut_set->title = $form_state['values']['title'];
	shortcut_set_save($shortcut_set);
	drupal_set_message(t('Updated set name to %set-name.', array('%set-name' => $shortcut_set->title)));
	$form_state['redirect'] = "admin/config/user-interface/shortcut/$shortcut_set->set_name";
}

/**
 * Form callback: builds the confirmation form for deleting a shortcut set.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param object $shortcut_set
 *   An object representing the shortcut set, as returned from
 *   shortcut_set_load().
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_set_delete_form_submit()
 */
function shortcut_set_delete_form($form, &$form_state, $shortcut_set) {
	$form['shortcut_set'] = array(
			'#type' => 'value',
			'#value' => $shortcut_set->set_name,
	);

	// Find out how many users are directly assigned to this shortcut set, and
	// make a message.
	$number = db_query('SELECT COUNT(*) FROM {shortcut_set_users} WHERE set_name = :name', array(':name' => $shortcut_set->set_name))->fetchField();
	$info = '';
	if ($number) {
		$info .= '<p>' . format_plural($number,
				'1 user has chosen or been assigned to this shortcut set.',
				'@count users have chosen or been assigned to this shortcut set.') . '</p>';
	}

	// Also, if a module implements hook_shortcut_default_set(), it's possible
	// that this set is being used as a default set. Add a message about that too.
	if (count(module_implements('shortcut_default_set')) > 0) {
		$info .= '<p>' . t('If you have chosen this shortcut set as the default for some or all users, they may also be affected by deleting it.') . '</p>';
	}

	$form['info'] = array(
			'#markup' => $info,
	);

	return confirm_form(
			$form,
			t('Are you sure you want to delete the shortcut set %title?', array('%title' => $shortcut_set->title)),
			'admin/config/user-interface/shortcut/' . $shortcut_set->set_name,
			t('This action cannot be undone.'),
			t('Delete'),
			t('Cancel')
	);
}

/**
 * Submit handler for shortcut_set_delete_form().
 */
function shortcut_set_delete_form_submit($form, &$form_state) {
	$shortcut_set = shortcut_set_load($form_state['values']['shortcut_set']);
	shortcut_set_delete($shortcut_set);
	$form_state['redirect'] = 'admin/config/user-interface/shortcut';
	drupal_set_message(t('The shortcut set %title has been deleted.', array('%title' => $shortcut_set->title)));
}

/**
 * Form callback: builds the confirmation form for deleting a shortcut link.
 *
 * @param $form
 *   An associative array containing the structure of the form.
 * @param $form_state
 *   An associative array containing the current state of the form.
 * @param $shortcut_link
 *   An array representing the link that will be deleted.
 *
 * @return
 *   An array representing the form definition.
 *
 * @ingroup forms
 * @see shortcut_link_delete_submit()
 */
function shortcut_link_delete($form, &$form_state, $shortcut_link) {
	$form['shortcut_link'] = array(
			'#type' => 'value',
			'#value' => $shortcut_link,
	);

	return confirm_form(
			$form,
			t('Are you sure you want to delete the shortcut %title?', array('%title' => $shortcut_link['link_title'])),
			'admin/config/user-interface/shortcut/' . $shortcut_link['menu_name'],
			t('This action cannot be undone.'),
			t('Delete'),
			t('Cancel')
	);
}

/**
 * Submit handler for shortcut_link_delete_submit().
 */
function shortcut_link_delete_submit($form, &$form_state) {
	$shortcut_link = $form_state['values']['shortcut_link'];
	menu_link_delete($shortcut_link['mlid']);
	$form_state['redirect'] = 'admin/config/user-interface/shortcut/' . $shortcut_link['menu_name'];
	drupal_set_message(t('The shortcut %title has been deleted.', array('%title' => $shortcut_link['link_title'])));
}

/**
 * Menu page callback: creates a new link in the provided shortcut set.
 *
 * After completion, redirects the user back to where they came from.
 *
 * @param $shortcut_set
 *   Returned from shortcut_set_load().
 */
function shortcut_link_add_inline($shortcut_set) {
	if (isset($_REQUEST['token']) && drupal_valid_token($_REQUEST['token'], 'shortcut-add-link') && shortcut_valid_link($_GET['link'])) {
		$item = menu_get_item($_GET['link']);
		$title = ($item && $item['title']) ? $item['title'] : $_GET['name'];
		$link = array(
				'link_title' => $title,
				'link_path' => $_GET['link'],
		);
		shortcut_admin_add_link($link, $shortcut_set, shortcut_max_slots());
		if (shortcut_set_save($shortcut_set)) {
			drupal_set_message(t('Added a shortcut for %title.', array('%title' => $link['link_title'])));
		}
		else {
			drupal_set_message(t('Unable to add a shortcut for %title.', array('%title' => $link['link_title'])));
		}
		drupal_goto();
	}

	return drupal_access_denied();
}
